Push-rod connection for automobile-engine valves



R. L. HUGHENS.

PUSH ROD CONNECTION FOR AUTOMOBILE ENGINE VALVES.

APPLICATION FILED IAN. I7. w20.

1,379,343. Patented Muy 24, 1921 y.carri-:.13 STATES PATENT .-oFFlcE.

v ROBERT L. HUGHENS, OF ATLANTA, GEORGIA.`

l PUSH-ROD CONNECTION FOR AUTOMOBILE-ENGINE To all whom it may concern.'

Be it known that I, ROBERT LEE HUGHENS, a citizen of' the United States,and a'resident of the city of Atlanta, State of Georgia, have inventedcertain new and useful Improvements in Push-Rod Connections forAutomobile-Engine Valves, of which the following is a specification.

The invention concerns particularly coupling connection for the push rodof the valves of automobile engines and the invention consists offeatures andV combination and arrangement 'of parts hereinafterdescribed and particularly pointed out inthe claims. Y Inthelaccompanying drawings, Figure 1 is aplanview of' a part of thecylinder block of an automobile'engine with my improvement combi-nedtherewith, parts being shown in plan, f

Fig. 2`is aI 'vertical seetionalyiew through a portion of the cylinderblock with my improved 'connection shown in elevation.

Fig. 3 is a vertical sectional view through the parts of the push rodand the coupling.

Fig. 4 is' a side view of the coupling member. v i Fig. 5 is a Viewofthe inner sider ofthe coupling member. y n

Fig. 6 is an end view of the coupllng member.

Fig. 7 is a sectional view of the coupling organization taken a quarterturn from the sectional View of Fig. 3. r

In these drawings, 1 indicates generally a cylinder block of anautomobile engine, 2 indicatin, I a portion of the cylinder. The pushrod comprises the rod section 3, which, at its upper end, connects witha suitable rocker vfor operating the valve and a lower section 4 guidedvertically through a portion of the cylinder block and resting at itslower end upon the cam 5 by which the push rod is operated vertically.The upper section 3 has a threaded end 6 with a reduced plain extension7 fitting in a socket 8 of the lower push rod 4, and on this threadedportion 6 a collar 9 is fitted, this being threaded at 10, and thiscollar is held in any position at which it may be adjusted by a jam nut11. The collar is slotted transversely at its lower portion 12 below itsthreaded part and the upper end of' the lower section 4 is also slottedtransversely, as indicated at 13. AL couplin member shown in-Fi 4, 5 and6 in detail, is provided with nges 14 'to Specification of LettersPatent.'

1 and push rod ing screws 16 to bear and pressy them inwardly soiasA lthe 'collar '9 and its flanges 14 are extended at 14 to bear on theouter surface of the cyl-` inder block as indicated at 14X, F ig. l, soas to get a bearing at this point and prevent rattle or loosenessr of'the parts being operated. In order to secure-a proper fitof thecouplingmember with the collar 9 vsection 4, and with the bearing'surface of the cylinder block, I provide 'a lconstruction whichisadjustable and which will take up any wear or looseness in the parts sothat noise due to knocking or rattle will be avoided. For this purposethev coupling Patentea-May'24, .1921. application inea January 17, 1920.serial No. 352,620. I

.ofthe Collar 9 and as they are f is provided with the ears or flanges14a overn lying the extensions 14 on the flanges orleX- tensions 14 iand carrying adjustl to get the proper bearing at the point 14 on Byadjusting the screws 16 not only can slackness or wear be taken u 'l tosecure a firm bearing at the point 14X, F? ig. 1, but the lips orflanges 14 will also take up any looseness in the couplingby engagingthe collar or sleeve 9 and also the wall of slots 13 in the push rodsection 4. Ineffect, the connection at 18, Fig. 8 is a the base flange14, 14-and the mainlbody of the coupling so that by adjusting the screws16 the base'` portion 14, 14, will be rocked onthe point 18 as a pivot,and the proper adjustment can# th'us be. effected. From the above, itwill/be seen that an adjustable push rod connection between the cam 5and the rocker vvof the valve is provided, also that the two rodsections 3 and 4 are held against relative rotary displacement so thatthe lower end of the rod 4 will be properly presented with its curvedend 4x to'the eccentric and the connection between the rod .3 and rockerWill' not be subject to undue-strain and this effect is sepivotal )onebetweeni lthe Af'ace of the cylinder block. These screws i valvescomprising push rod sections7 an ad-y justable connection between themand a coupling member having` flanges engaging parts of the push rodsections and other flanges engaging the outer face of the cylinderblock, with means for adusting the said coupling member to take uplooseness in the connection, substantially as described.

2. In combination with a lower push rod section, for automobile Valves.an upper push rod section,` a collar screw threaded on the uppersection, a jarnnut 'for holding said collar, and a coupling memberharing` a mainv portion to embrace the said collar and flanges to enterslots in the collar land lower rod section7 and a part to bear on thecylinder block and means for adjusting the coupling member to take upslack between itsell and the cylinder block.

3. A coupling member for sections or the push rod of valves ofautomobile engines having a portion to engage the push rod sections anda portion to slidably engage the face of thc cylinder block and meansfor adjusting the coi'lpling to take up slaclrin its engagement with therod sections and with the cylinder block.

4. A coupling member Jfor sections of the push rods of Yalves ofautomobile engines rod connection, substantially as described.'

5. A coupling member for the sections of f* a push rod of automobileengine valves com prising a main portion to embrace portions of the saidrod sections and base portions presenting inwardly extending flanges toengage portions of the said sections and outwardly extending langeportions to bear on the cylinder block,v ears or flanges overlying saidoutwardly extending ango portions and screws passing through the saidears and bearing on the base portion to adjust the outer yflanges oneway andl the inner langes the other way, said base portions beingconnected at their intermediate points with the main portion,substantially as described.

(l. ln a gasolene engine, the combination l with the frame thereof, off'alve actuating mechanism including a push-rod divided into two axiallyalined parts the adjacent ends of said parts having kejf'ways therein,

and means for detachably connecting said j sonner L. in enses.

